While the Coarse calibration in RTCv2 is obsolete, in 'L1 and 'F2 it's the only method (and I know 'L1 is NRND, but it's still around and will be for years to come, if ST sticks to its commitment), and as long as it's mentioned in 'F4 it should be properly described there too.
So, my question #1 is, what's the role of RTC_CR.DCE. It's not described in the narrative. I can guess and test, but I don't intend to.
Question #2 is, whether the Coarse calibration is supported in 'F3 (according to AN4759 Rev.9) or not (according to RM0316 Rev 10).
JW
